Troubleshooting - Thermo Scientific TSX Series Installation And Operation Manual

13 Troubleshooting

Table 11. Troubleshooting Procedures
Problem Cause
Unit does not
operate or
Power supply
Power Failure
Indicator is on
Temperature
Control
Condenser
clogged
Temperature
fluctuates
Solution bottle
Other causes
12V backup
Low battery
battery needs to
icon is lit
be replaced.
Incorrect Perimeter
Heater Duty Cycle
(Swinging doors
only)
Condensation
around door
Gaps exist in unit
frame
port holes
Door seal is broken
Thermo Scientific
WARNING: Troubleshooting procedures involve working with high
voltages which can cause injury or death. Troubleshooting should only be
performed by trained personnel.
This section is a guide for troubleshooting equipment problems.
Solution
Check that the cord is securely plugged in.
Plug another appliance into the outlet to see if it is live.
Check that the double pole circuit breaker located next to the power inlet is in
"ON" position (i.e. "I" position). Try cycling to OFF position (i.e. "O"
position) & then bring to ON ("I") position.
Test the voltage and verify that it is correct for your unit (refer to
If the outlet is dead, check the circuit breaker or fuses.
The unit should not be connected to a GFCI (Ground Fault Circuit Interrupter)
protected outlet as it may be subject to nuisance tripping.
Make sure that the control is set correctly. Refer to
Make sure the condenser and filter are clean. Refer to
.
Section 12.3
Make sure the solution bottles for the temperature sensors are full. The
solution is a 50/50 mixture of glycerin and distilled water.
If the temperature control is set correctly, the condenser is clean, but
temperature continues to fluctuate, call an authorized service representative.
Replace the battery. It is located on the top right hand side of the cabinet. Call
an authorized service representative.
Increase the Perimeter Heater Duty Cycle, Refer to
Ensure all port holes in the cabinet top, sides, and back are sealed properly to
prevent warm airflow into the cabinet. Seal any gaps.
Verify nothing is placed through the door seal such as a sensor. Check the door
seal following instructions in
Section 9.3
Section 12.2
Section 9.4
Section 12.5 .
TSX Blood Bank Refrigerators
Troubleshooting
).
Table 2
.
and
.
39